Fireproof flooring.



Pafenvted Sept. 9, |902. C. F. HAGLIN. t Y FIREPROOF FLOORING.

(Application letLMay 23, 1901.)

J, Q/Kg UNTTED STATES PATENT OFFICE.

CHARLES F. I-IAGLIN, O F MINNEAPOLIS, MINNESOTA.`

Fim-:PROOF FLOORING.

SPECIFICATION forming part of Letters Patent No. 708,764, datedSeptember 9, 1902.

' Application flied nay 2s, 1901. serial No. 61,497. (no man.)

To a/ZZ whom it may concern:

Be it known that 1, CHARLES F. HAeLIN, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inFireproof Flooring; and Ido hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My present invention has for its especial object to improve theconstruction of flreproof floors wherein concrete is reinforced andsupported by embeddedwires.

To the above ends the invention consists of the novel devices andcombinations of devices hereinafter described, and dened in the claims.

The invention is illustrated in the accompa- Y nying drawings, whereinlike characters indicate like parts throughout the several views.

Figure 1 is a View, partly in plan and partly in horizontal section, onthe line x' x' of Fig. 2, some parts being broken away, showing the oorand Walls of a building, the same being connected and constructed inaccordance with my invention. Fig. 2 is a vertical section on the line@c2 x2 of Fig. 1. Fig. 3 is a detail of one of the -socalledtighteninglinks. Fig. 4 is a view corresponding to Fig. 1, butillustrating a modified construction; and Fig. isavertical section onthe line x5 :t5 of Fig. 4.

My present invention is directed more particularly to the means forsecurely connecting or anchoring the composition ioor to the walls of abuilding.

In the drawings the numeral 1 indicates the walls of the building, andthe numeral 2l indicates the, concrete body of the floor'.

In the construction illustrated in Figs. 1 to 3, inclusive,lhorizontally-extended Z-shaped Hoor-beams 3 are partially embedded inthe walls 1, with one iange of each beam projecting from the wallsandserving as ledges upon which rest the adjacent edges of the cement floor2. The kbeams 3 on the opposite sides of the walls 1 extend in the sameplanes, and at intervals they are securely tied together by nuttedtie-bolts 4, passed through the bodies thereof and through the Fireprooffloors.

embraced wall. The projecting flanges of the said floor-beams 3 areprovided at suitable intervals with headed studs or pins 5. Thefloor-wires 6 are stretched over the pins 5 in any one of severaldifferent ways-as, for instance,-by using a series of loops, as shown inFig. 1, and then tightening the said loops by driving thetightening-links 7 thereon toward the said pins 5. This arrangement ofthe door-wires is not hereinl claimed, as the same is claimed broadly inmy pending application, Serial No. 37,229, Iiled November 2l, 1900, audallowed April 24, 1901, entitled The said wires 6 are of course embeddedin the body of the concrete floor 2, and they are preferably stretchedto lmore than their normal lengths, so as to resist the initialdownward-springing tendency Vof the iioor.

In the construction illustrated in Figs. 4 and the floor-beams 8 areconnected and clamped to the wall l by the nutted clamping-bolts 4 inthe same manner as are the beams 3, previously described; but in thisinstance the said beams are aiorded by angleirons, theoutwardlyprojecting flanges of which are perforated, as indicated at 9.The floor-wire 10 is threaded through the said perforations 9 in themanner illustrated in said Figs. 4 and 5.

The walls 1, it will of course be understood, may be either of brick,concrete, or any other ysuitable construction, and the floor-beams maybe more or less embedded therein. The said door-beams may take otherforms than those described, but should in all cases be iianged beamshaving anges which project so as to form shelves for the adjacent edgesof the cement ioor and a convenient device to which4 the Hoor-wires maybe anchored or secured.

In the illustration given a single section or span of the ioor is shownas extended from one wall to another. In practice very frequentlyintermediate floor-sectionswould be interposed between the walls.

With the above-described construction, it

y will be seen that the tension of the door-wires on the opposite sidesof one of the walls pull against each other, through the tie-bolts 4, sothat the floors of a series of rooms are rigidly tied together.

IOO

The above construction is extremely strong and it is quickly puttogether and, furthermore, is of comparatively small cost. It will ofcourse be understood that many other modiiications (not aboveillustrated) may be made within the scope of my invention. It Would beWithin the scope of my invention as deiined in the claims to turn theconcrete body, designated as a H0013 into a vertical position, andthereby make the same serve as a wall.

Vhat I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

l. The combination with a Walland the concrete body of a Hoor, ofparallel an ged beams on the opposite sides of said Wall, bolts or rodspassed through said Wall and through the bodies of said floor-beams,which floorbeams have laterally-projecting fianges, and floor-wiresanchored to said projecting ian ges and embedded in the concreteloor-body,sub stantially as described.

2. The combination With a wall and the concrete body of a licor, of aflanged beam secured to said Wall, and floor-Wires bent upon themselvesand threaded over and over through perforations in the iange of saidbeam, which Wires are embedded in the concrete body of the floor,substantially as described.

3. The combination With laterally-spaced walls and the concrete body ofa floor extending between said walls, of anged beams secured to saidWalls and provided with laterally-projecting flanges, and floor-Wiresbent successively in one direction and then in the other and threadedover and over through perforations .in the projecting flanges of saidtwo beams, which Wires are embedded in the said concrete floor-body,substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES F. HAGLIN.

Vitnesses:

ELIZABETH KELIHER, F. D. MERCHANT.

